Hey all, a relative bash/script newbie trying solve a problem.
I've got a text file with lots of lines that I've been able to clean up and format with awk/sed/cut, but now I'd like to remove the lines with duplicate usernames based on time stamp. Here's what the data looks like
2007-11-03... (3 Replies)
Hello friends!
Each line of my input file has this format:
word<TAB>tag1<blankspace>lemma<TAB>tag2<blankspace>lemma ... <TAB>tag3<blankspace>lemma
Of this file I need to eliminate all the repeated tags (of the same word) in a line, as in the example here below, but conserving both (all) the... (2 Replies)
Hello guys,
should be a very easy questn for you:
I need to delete strings in file1 based on the list of strings in file2.
like file2:
word1_word2_
word3_word5_
word3_word4_
word6_word7_
file1:
word1_word2_otherwords..,word3_word5_others... (7 Replies)
I am completely new to shell scripting but have been assigned the task of creating several batch files to manipulate data. My final task requires me to find lines that have duplicates present then delete not only the duplicate but the original as well. The script will be used in a windows... (9 Replies)
Hi ALL
I need a help
I need to retain only the first line of 035 if I have two line before =040 , if only one then need to take that
Eg:
Input
=035 (ABC)12324141241
=035 (XYZPQR)704124
=040 AB$QS$WEWR
=035 (ABC)08080880809
=035 (XYZPQR)9809314
=040 ... (4 Replies)
The question is not as simple as the title... I have a file, it looks like this
<string name="string1">RZ-LED</string>
<string name="string2">2.0</string>
<string name="string2">Version 2.0</string>
<string name="string3">BP</string>
I would like to check for duplicate entries of... (11 Replies)
I need help in figuring out hoe to delete lines in a data file. The data file is huge. I am currently using "vi" to search and delete the lines - which is cumbersome since it takes lots of time to save that file (due to its huge size).
Here is the issue. I have a data file with the following... (4 Replies)
Hi guys, I wonder if it's possible to search for a line containing 2 strings and delete that line and perhaps replace the source file with already deleted line(s).
What I mean is something like this:
sourcefile.txt
line1: something 122344 somethin2 24334 45554676
line2: another something... (6 Replies)
Hello All !
I need your help on this case,
I have a csv file with this:
ITEM105;ARI FSR;2016-02-01 08:02;243
ITEM101;ARI FSR;2016-02-01 06:02;240
ITEM032;RNO TLE;2016-02-01 11:03;320
ITEM032;RNO TLE;2016-02-02 05:43;320
ITEM032;RNO TLE;2016-02-01 02:03;320
ITEM032;RNO... (2 Replies)
Dear folks
I have a map file of around 54K lines and some of the values in the second column have the same value and I want to find them and delete all of the same values. I looked over duplicate commands but my case is not to keep one of the duplicate values. I want to remove all of the same... (4 Replies)
Discussion started by: sajmar
4 Replies
LEARN ABOUT DEBIAN
fdupes
FDUPES(1) General Commands Manual FDUPES(1)NAME
fdupes - finds duplicate files in a given set of directories
SYNOPSIS
fdupes [ options ] DIRECTORY ...
DESCRIPTION
Searches the given path for duplicate files. Such files are found by comparing file sizes and MD5 signatures, followed by a byte-by-byte
comparison.
OPTIONS -r --recurse
for every directory given follow subdirectories encountered within
-R --recurse:
for each directory given after this option follow subdirectories encountered within (note the ':' at the end of option; see the
Examples section below for further explanation)
-s --symlinks
follow symlinked directories
-H --hardlinks
normally, when two or more files point to the same disk area they are treated as non-duplicates; this option will change this behav-
ior
-n --noempty
exclude zero-length files from consideration
-f --omitfirst
omit the first file in each set of matches
-A --nohidden
exclude hidden files from consideration
-1 --sameline
list each set of matches on a single line
-S --size
show size of duplicate files
-m --summarize
summarize duplicate files information
-q --quiet
hide progress indicator
-d --delete
prompt user for files to preserve, deleting all others (see CAVEATS below)
-N --noprompt
when used together with --delete, preserve the first file in each set of duplicates and delete the others without prompting the user
-v --version
display fdupes version
-h --help
displays help
SEE ALSO md5sum(1)NOTES
Unless -1 or --sameline is specified, duplicate files are listed together in groups, each file displayed on a separate line. The groups are
then separated from each other by blank lines.
When -1 or --sameline is specified, spaces and backslash characters () appearing in a filename are preceded by a backslash character.
EXAMPLES
fdupes a --recurse: b
will follow subdirectories under b, but not those under a.
fdupes a --recurse b
will follow subdirectories under both a and b.
CAVEATS
If fdupes returns with an error message such as fdupes: error invoking md5sum it means the program has been compiled to use an external
program to calculate MD5 signatures (otherwise, fdupes uses internal routines for this purpose), and an error has occurred while attempting
to execute it. If this is the case, the specified program should be properly installed prior to running fdupes.
When using -d or --delete, care should be taken to insure against accidental data loss.
When used together with options -s or --symlink, a user could accidentally preserve a symlink while deleting the file it points to.
Furthermore, when specifying a particular directory more than once, all files within that directory will be listed as their own duplicates,
leading to data loss should a user preserve a file without its "duplicate" (the file itself!).
AUTHOR
Adrian Lopez <adrian2@caribe.net>
FDUPES(1)